Steam-tbaiv



C. E. MARION. 'STEAM TRAP.

AEPLICATION HLED APR. 4. |919.

Patented Sept. 16, 1919.

Imam/toa aum/m41 Gamesa.' Manton; or' FRANKLIMNEW HAMPSHIRE;

s'rnaanrranr.

Be it known that I, Cini-mins:` E. Mnrom a citizeny of the: United i' States: ofi` America, and `iaf resident oft Franklin-.,countyi of Merrimack, and" Sta-te `off New Hampshire, have invented` certain' new and useful Improve ments in Steam-Traps, ofwhichitheifollow ing :is affull and Yclear. specification.'

. 'llhe object ,of this invention` isvto .simplify and improve the construction :of a :device of this: sort'gqandl the :inventionl consists lof cerL tain novel'. featuresl of; construction hereinn after.' describedi and claimed.`

In the drawing* Fig-uref 1151 is viens` partlyfin vertical section and partly in side elevation of my improvedv trap; f

Fig. 2 is a plan view thereof with the coverE removed.

ln the drawings, a designates the water trap-chamber which may be of any suitable size and shape, this chamber being provided with a steam and water inlet b at one side and a water outlet c at the other side. The outlet pipe extends inwardly into the trapcham'ber beyond the inner surface of the wall of the trap-chamber, as shown at al, to form a nipple which projects into the trapchamber to a po-int a short distance from the inner face of the wall. The inner end of this nipple is rounded out to form a rounded valve-seat e, and against this seat is seated a spherical valve f which is desirably made of aluminum but which may be made of any other non-corr-odible substance which is light in weight.

The valve-ball f is mounted to freely slide on a stem g which passes centrally through the ball; and attached to the upper end of this stem is a spherical iioat h which is guided in its vertical movement by the ad jacent end-wall of the trap-chamber and a pair of inwardly-extending vertical flanges c' on the side-walls of the trap-chamber. The stem g depends to a point below the valve member f and is provided with a head j, and between this head and the Valve f is arranged a light coil-spring la which tends to normally hold the ball-valve f against the under side of the float. In the outlet pipe c is arranged an outwardly-opening checkvalve Z of any suitable construction. When the interior of the trap-chamber is subjected to steam pressure, the ball-valve f will be held by said pressure to its seat in the end Specification of Letters Patent. Patntedfsept. 16, 1919. APFIGEOIL lledi`A1`J1'1 "4, 1919.

Serial No. 287,471;

ofi thefwater-outlet conduit d, and the` preslsure. of=steamwillmaintain the valve f in this position'. until suflicient water is accumuflat'edyin the trapchamber`to raise the float-to a; point where i-t willi pull or rock theball-valve f slightly ofi'l its seat, whereuponthe pressure in the trap-chamber will causethewaterl in the same to be1 forcibly ejectedlthrough the outlet pipe @,and when the waterin the; trapschamber is lowered suiliciently toffrec the valvesball sufiicientlyfto permit it tosettleagainstfitsseat ,fth'el ejectionlo-f water will `be cutoii.` Vvlhen the valve fyisiseated,` the fioat will besupported on the bot-tom of the trap-chamber through the medium of the stem g and the ff'ldeing held at the proper height for engagement with the valve-seat e at all times, and when the float rises the spring will be compressed, the springbeing light enough in tension to permit its compression by the upward pull of the float before the ballvalve f is rocked ofi its` seat. It will be understood that there is sufficient room between t-he ii'alve-seat c and the guide-ribs i to permit the ball-valve f to be rocked away from its seat when the iioat is lifted by the ris of water in the trapchamber, and yet it is important that the valve-ball be confined suiiiciently close to the valve-seat e to insure it being again seated thereagainst when the steam pressure again rises in the trap-chamber after the discharge of the water accumulated therein. The ball is thus confined close to its seat by means of the aforesaid guideribsjV and the adjacent up standing wall fm of the trap-chamber, these ribs i and the wall m forming virtuallyT a well n in which the valve-ball is conlined at all times. The spring` 7a also permits a certain amount of vibration or agitation of the float without prematurely disturbing the valve-ball on its seat.

By the use of the check-valve Z, I utilize the steam pressure to force the ejected water to a higher level than the trap-chamber, since the check-valve will shut' ofi all bacl flow of water into the trap-chamber.

It will be understood that the shape and size of the ioat may be varied at will; the float may` in fact, 'be rectangular in shape instead of the spherical shape shown.

,The nature and scope of the invention .having been thus indicated and its preferred embodiment having been specifically described, what is claimed as new is:

1. In a device of the class set forth, a ballvalve adapted to seat over the water-outlet, a float Provided with a stem having a sliding passage throughthe ball, said stem depending below the ball and being surrounded by an extensible spring normally tending to press the ball toward the float, for the purpose set forth.

2. In a device of the class set forth, a ball-valve adapted to close the water-outlet, a float having a stem passing freely down through the ball-valve, and means whereby the rising of the float to a predetermined point will dislodge the ball from its seat.

13. In a device of the class set forth, a ballvalve adapted to close the water-outlet, a float having a stem passing freely down through the 'ball-valve, and means whereby the rising of the float to a predetermined point will dislodge the ball from its seat, said means embodying a yielding device normally tending to bring the ball and the ioat together.

4. In a device of the class set forth, a trapchamber having a steam-inlet and a Wateroutlet, a ball-,valve adapted to seat over the water-outlet, means being provided for holding said valve adjacent said outlet when Jshe valve is open, a float having a stem slid ingly depending lthrough said ball-valve and adapted to rest on the stationary part of the trap-chamber, and a spring surrounding` the depending end of said stem and arranged to normally bring the bali-valve and the iioat together.

5. In a device of the class set forth, a valve adapted to close the water-outlet, a iioat, and yielding means connecting the float to the valve to permit a limited yielding movement between the float and the valve prior to the opening of the valve by the io'at, said means embodying a rod attached to the float and slidably connected to the valve, and a spring adapted to be compressed by the rod when .the fioat rises.

In testimony whereof I hereunto afiIiX my signature.

CHARLES E. MARION.

- copies of this patent may 'be obtained for five cents each, by addressing the Commissioner of Yatents.

Washington, D. C. 

